The statement above is FALSE.
Homonyms refers to two or more words which have the same spelling, the same sound but different meaning. The three words given above, that is, Mary, Marry and Merry do not have the same spelling and sound, therefore, they are not homonyms.
That is True but not false
D. Transitions
In case you need it, shorter articles tend to have one point and not multiple which would lead to having no transitions.
Concrete facts is not used for adding vivd detail. It is important, but it doesn't help in this particular regard. So the answer is A.